diff options
Diffstat (limited to 'arch/m68k/mach-mcfv4e/net/queue.c')
-rw-r--r-- | arch/m68k/mach-mcfv4e/net/queue.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/m68k/mach-mcfv4e/net/queue.c b/arch/m68k/mach-mcfv4e/net/queue.c deleted file mode 100644 index 9f779474ea..0000000000 --- a/arch/m68k/mach-mcfv4e/net/queue.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Copyright (c) 2008 Carsten Schlote <c.schlote@konzeptpark.de> - * See file CREDITS for list of people who contributed to this project. - * - * This file is part of barebox. - * - * barebox is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * barebox is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with barebox. If not, see <http://www.gnu.org/licenses/>. - */ - -/** @file - * Implements a first in, first out linked list - * - * @note Simple selfcontaining basic code - * @todo Replace by barebox standard list functions - */ -#include <linux/types.h> -#include <proc/net/queue.h> - -/** Initialize the specified queue to an empty state - * - * @param[in] - * q Pointer to queue structure - */ -void queue_init(QUEUE *q) -{ - q->head = NULL; -} - -/** - * Check for an empty queue - * - * @param[in] q Pointer to queue structure - * @return - * 1 if Queue is empty - * 0 otherwise - */ -int -queue_isempty(QUEUE *q) -{ - return (q->head == NULL); -} - -/** - * Add an item to the end of the queue - * - * @param[in] q Pointer to queue structure - * @param[in] node New node to add to the queue - */ -void queue_add(QUEUE *q, QNODE *node) -{ - if (queue_isempty(q)) - { - q->head = q->tail = node; - } - else - { - q->tail->next = node; - q->tail = node; - } - - node->next = NULL; -} - -/** Remove and return first (oldest) entry from the specified queue - * - * @param[in] q Pointer to queue structure - * @return - * Node at head of queue - NULL if queue is empty - */ -QNODE* -queue_remove(QUEUE *q) -{ - QNODE *oldest; - - if (queue_isempty(q)) - return NULL; - - oldest = q->head; - q->head = oldest->next; - return oldest; -} - -/** Peek into the queue and return pointer to first (oldest) entry. - * - * The queue is not modified - * - * @param[in] q Pointer to queue structure - * @return - * Node at head of queue - NULL if queue is empty - */ -QNODE* -queue_peek(QUEUE *q) -{ - return q->head; -} - -/** Move entire contents of one queue to the other - * - * @param[in] src Pointer to source queue - * @param[in] dst Pointer to destination queue - */ -void -queue_move(QUEUE *dst, QUEUE *src) -{ - if (queue_isempty(src)) - return; - - if (queue_isempty(dst)) - dst->head = src->head; - else - dst->tail->next = src->head; - - dst->tail = src->tail; - src->head = NULL; - return; -} - |